It's just a flourish, Jim. The groom is Ettore Caccavale.
Written after his birth is Capua followed by the name of a frazione. I see the word frazione and then a name which is S. (Angelucci???) followed by another word. There is only one frazione listed for SMCV and that is Sant'Andrea dei Lagni. I went through an entire list of frazioni and can't find anything similar to the handwriting in this document. Maybe someone else on this forum, who is more familiar with the history of the area, has another idea. The surname Angelucci though does exist in the town.